Nadal booted out by Lukas Rosol

Rosol wins 6-7 (11/9), 6-4, 6-4, 2-6, 6-4 (second round, 2012)

Nadal is no stranger to the odd shock result, but his early exit in 2012 came as a big upset when matched against Czech player Lukas Rusol.

Having just won his customary French Open title for the year, Nadal conspired to lose in a five-set heartbreaker, with the final set seeing Rosol win an arm wrestle despite Nadal only conceding 16 unforced errors.

It was Nadal's earliest grand slam loss since 2005, although he again bowed out early in 2013 to Steve Darcis (ranked 135 in the world) in an injury-blighted year.

Jelena Dokic beats world number one Hingis

Dokic wins 6-2, 6-0 (first round, 1999)

A young Jelena Dokic - ranked 129th in the world - ripped through an emotionally shattered Martina Hingis, fresh after a French Open final collapse against Steffi Graf.

Hingis had earlier won the Australian Open that year, but was powerless to stop the up-and-coming Australian teen from powering past in the first set, before sensationally delivering a bagel in the second and final set.

Hingis would never again go on to win a grand slam tournament.

Peter Doohan shocks Boris Becker

Doohan wins 7-6, 4-6, 6-2, 6-4 (second round, 1987)

Still considered one of Wimbledon's greatest upsets of all time, the on-fire Boris Becker - who had won the tournament as an unseeded 17-year-old in 1985 - came up well short against Australia's Peter Doohan.

The unheralded Doohan took four sets to oust the 19-year-old Becker from the second round, with the top seed yet to drop a match in his fledgling Wimbledon career.

In contrast, Doohan had yet to win a match at the All England Club in four previous attempts.

Doohan brought out the perfect match to blast past the German, who would go on to win two more grand slam titles on grass.

Curren too good for McEnroe

Curren wins 6-2, 6-2, 6-4 (quarter-finals, 1985)

John McEnroe was expected to demolish all before him en route to another grand slam title after beating all comers in 1984, a year in which he compiled an incredible 82-3 win-loss record.

But the defending champion at Wimbledon had no answer to the big-serving South African Kevin Curren in 1985.

The straight-sets loss to Curren was McEnroe's worst loss since becoming the world's number one player, and marked the end of his grand slam title runs, never winning a major prize for the remainder of his career.

You have no doubt been hearing a lot about the Paris Agreement and know that it pertains to climate change, but are too embarrassed at this stage to ask for an overall explanation of what it's all about.